# Design a rollup table for a sales OLAP cube

Canonical URL: <https://datadriven.io/problems/design-a-rollup-table-for-a-sales-olap-cube-create-a-sales-da6f0fe2>

Domain: Data Modeling · Difficulty: medium

## Problem

Design a rollup table for a sales OLAP cube. Create a sales_rollup table that stores pre-computed aggregates at multiple granularity levels (day, month, year) using a granularity column.

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